Martin Lee
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View article: SUN-700 Efficacy Of Medical Group Visits Vs. Dietitian-led Visits For Weight Loss In Obese Patients: A 12-month Randomized Trial In A Safety Net Setting
SUN-700 Efficacy Of Medical Group Visits Vs. Dietitian-led Visits For Weight Loss In Obese Patients: A 12-month Randomized Trial In A Safety Net Setting Open
Disclosure: M. Shaheen: None. P. Duran: None. D. Pan: None. F. Ramirez: None. M. Nemeth: None. M. Lee: None. T.C. Friedman: None. Obesity represents a significant public health challenge in the United States, disproportionately affecting u…
View article: Activity of a Phage Collection Against Staphylococci from Periprosthetic Joint Infections
Activity of a Phage Collection Against Staphylococci from Periprosthetic Joint Infections Open
Background: Phages are being assessed for treatment of periprosthetic joint infection (PJI). Staphylococci are the most common cause of PJI. Phages are traditionally considered to be strain-specific and restricted to specific species. We a…
View article: Magnesium phosphate in the Cold Bokkeveld (<scp>CM2</scp>) carbonaceous chondrite
Magnesium phosphate in the Cold Bokkeveld (<span>CM2</span>) carbonaceous chondrite Open
Hydrous Mg‐phosphate was first described from astromaterials in particles returned from the C‐type asteroid Ryugu, and has subsequently been found in samples of the B‐type asteroid Bennu and CI1 carbonaceous chondrites. This phase may have…
View article: P-141 Resveratrol Supplementation in Vitrification-Warming Solutions Improves Clinical Outcomes after Vitrified/Warmed Blastocyst-Stage Embryo Transfer
P-141 Resveratrol Supplementation in Vitrification-Warming Solutions Improves Clinical Outcomes after Vitrified/Warmed Blastocyst-Stage Embryo Transfer Open
Study question Does resveratrol supplementation in vitrification-warming solutions improve embryo quality and pregnancy outcomes after vitrified-warmed blastocyst transfers? Summary answer Resveratrol-supplemented vitrification-warming sol…
View article: A primitive asteroid that lived fast and died young sampled by a xenolith in the Cold Bokkeveld <scp>CM2</scp> carbonaceous chondrite
A primitive asteroid that lived fast and died young sampled by a xenolith in the Cold Bokkeveld <span>CM2</span> carbonaceous chondrite Open
Xenoliths in carbonaceous chondrites include lithologies that are unrepresented in the meteorite record and so are a rich source of information on asteroid diversity. Cold Bokkeveld is a CM2 regolith breccia that contains both hydrous and …
View article: Low-Temperature Aqueous Alteration of Chondrites
Low-Temperature Aqueous Alteration of Chondrites Open
Chondritic meteorites (chondrites) contain evidence for the interaction of liquid water with the interiors of small bodies early in Solar System history. Here we review the processes, products and timings of the low-temperature aqueous alt…
View article: <scp>CM</scp> carbonaceous chondrite petrofabrics and their implications for understanding the relative chronologies of parent body deformation and aqueous alteration
<span>CM</span> carbonaceous chondrite petrofabrics and their implications for understanding the relative chronologies of parent body deformation and aqueous alteration Open
CM chondrites have been subjected to numerous alteration processes including brecciation and ductile deformation. Here, we present the results of 2D and 3D petrofabric analysis across a suite of meteorites: Aguas Zarcas, Cold Bokkeveld, Le…
View article: A high-resolution in situ X-ray diffraction study of mineral transitions due to post-hydration heating in CM chondrite meteorites
A high-resolution in situ X-ray diffraction study of mineral transitions due to post-hydration heating in CM chondrite meteorites Open
The effects of post-hydration heating over a broad range of temperatures are evident in many Mighei-like carbonaceous (CM) chondrites as a variety of mineral transitions. To better understand these processes and how a CM chondrite’s starti…
View article: Petrofabrics in the <scp>CM</scp> chondrite Kolang: Evidence for non‐spherical chondrules in the protoplanetary disk
Petrofabrics in the <span>CM</span> chondrite Kolang: Evidence for non‐spherical chondrules in the protoplanetary disk Open
The alignment of non‐spherical “flattened” chondrules into a petrofabric is a common feature of hydrated carbonaceous chondrite meteorites. This texture can form as a result of impacts at peak shock pressures exceeding 10 GPa. However, man…
View article: The Pathway to Decarbonisation in LPMitP: Carbon Management Framework
The Pathway to Decarbonisation in LPMitP: Carbon Management Framework Open
In the 2020 Policy Address, the Chief Executive announced that Hong Kong would strive to achieve carbon neutrality before 2050. All stakeholders of the society should take the initiative to work towards this goal. The Landslip Prevention a…
View article: Microscopic slickenside as a record of weak shock metamorphism in the surface layer of asteroid Ryugu
Microscopic slickenside as a record of weak shock metamorphism in the surface layer of asteroid Ryugu Open
The surface morphology of regolith grains from the C‐type asteroid Ryugu was studied in search of evidence of impact events on the asteroid. Scanning electron microscopy revealed that ~8% of C0105‐042 Ryugu grains have a smooth surface on …
View article: Shock melt in the Cold Bokkeveld <scp>CM2</scp> carbonaceous chondrite and the response of C‐complex asteroids to hypervelocity impacts
Shock melt in the Cold Bokkeveld <span>CM2</span> carbonaceous chondrite and the response of C‐complex asteroids to hypervelocity impacts Open
Many of the CM carbonaceous chondrites are regolith breccias and so should have abundant evidence for collisional processing. The constituent clasts of these fragmental rocks frequently display compactional petrofabrics; yet, olivine micro…
View article: The declining affordability of dental care in New Zealand from 1978 to 2023
The declining affordability of dental care in New Zealand from 1978 to 2023 Open
Background In the early 2020s, nearly half of New Zealand adults reported that cost of treatment had prevented them from accessing dental care, with higher rates among Māori, Pasifika and individuals living in the most deprived areas. Unaf…
View article: Chondrule sizes within the <scp>CM</scp> carbonaceous chondrites and measurement methodologies
Chondrule sizes within the <span>CM</span> carbonaceous chondrites and measurement methodologies Open
The sizes of chondrules are a valuable tool for understanding relationships between meteorite groups and the affinity of ungrouped chondrites, documenting temporal/spatial variability in the solar nebula, and exploring the effects of paren…
View article: Incipient space weathering on asteroid 162173 Ryugu recorded by pyrrhotite
Incipient space weathering on asteroid 162173 Ryugu recorded by pyrrhotite Open
Regolith samples returned from asteroid 162173 Ryugu by the Hayabusa2 mission provide direct means to study how space weathering operates on the surfaces of hydrous asteroids. The mechanisms of space weathering, its effects on mineral surf…
View article: Brecciation at the grain scale within the lithologies of the Winchcombe Mighei‐like carbonaceous chondrite
Brecciation at the grain scale within the lithologies of the Winchcombe Mighei‐like carbonaceous chondrite Open
The Mighei‐like carbonaceous (CM) chondrites have been altered to various extents by water–rock reactions on their parent asteroid(s). This aqueous processing has destroyed much of the primary mineralogy of these meteorites, and the degree…
View article: The thermal and aqueous evolution of CM carbonaceous chondrite meteorites revealed by triple oxygen and clumped isotope compositions of their carbonates
The thermal and aqueous evolution of CM carbonaceous chondrite meteorites revealed by triple oxygen and clumped isotope compositions of their carbonates Open
Carbonates (calcite, aragonite, dolomite) are a minor component (often below 4 vol. %) of CM carbonaceous chondrites and formed during the aqueous alteration of their asteroidal parent bodies in the first few million years of Solar System …
View article: Clumped isotope and Δ17O measurements of carbonates in CM carbonaceous chondrites: New insights into parent body thermal and fluid evolution
Clumped isotope and Δ17O measurements of carbonates in CM carbonaceous chondrites: New insights into parent body thermal and fluid evolution Open
The CM carbonaceous chondrites are key archives for understanding the earliest history of the solar system. Their C-complex asteroid parent body(ies) underwent aqueous alteration, among the products of which are carbonate minerals that can…
View article: Electron microscopy observations of the diversity of Ryugu organic matter and its relationship to minerals at the micro‐ to nano‐scale
Electron microscopy observations of the diversity of Ryugu organic matter and its relationship to minerals at the micro‐ to nano‐scale Open
Transmission electron microscopy analyses of Hayabusa2 samples show that Ryugu organic matter exhibits a range of morphologies, elemental compositions, and carbon functional chemistries consistent with those of carbonaceous chondrites that…
View article: In situ investigation of an organic micro‐globule and its mineralogical context within a Ryugu “sand” grain
In situ investigation of an organic micro‐globule and its mineralogical context within a Ryugu “sand” grain Open
The Hayabusa2 mission from the Japan Aerospace Exploration Agency (JAXA) returned to the Earth samples of carbonaceous asteroid (162173) Ryugu. This mission offers a unique opportunity to investigate in the laboratory samples from a C‐type…
View article: Four‐dimensional‐STEM analysis of the phyllosilicate‐rich matrix of Ryugu samples
Four‐dimensional‐STEM analysis of the phyllosilicate‐rich matrix of Ryugu samples Open
Ryugu asteroid grains brought back to the Earth by the Hayabusa2 space mission are pristine samples containing hydrated minerals and organic compounds. Here, we investigate the mineralogy of their phyllosilicate‐rich matrix with four‐dimen…
View article: Autophagy supports PDGFRA-dependent brain tumor development by enhancing oncogenic signaling
Autophagy supports PDGFRA-dependent brain tumor development by enhancing oncogenic signaling Open
Autophagy is a conserved cellular degradation process. While autophagy-related proteins were shown to influence the signaling and trafficking of some receptor tyrosine kinases, the relevance of this during cancer development is unclear. He…